fix check negative LP cost (#452)

0799fec5 · mercury233 · GitHub · 6abb008e · 0799fec5
Commit 0799fec5 authored Jul 11, 2022 by mercury233 Committed by GitHub Jul 11, 2022
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libduel.cpp libduel.cpp +5 -1

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--- a/libduel.cpp
+++ b/libduel.cpp
@@ -1431,7 +1431,11 @@ int32 scriptlib::duel_check_lp_cost(lua_State *L) {
 	uint32 playerid = (uint32)lua_tointeger(L, 1);
 	if(playerid != 0 && playerid != 1)
 		return 0;
-	uint32 cost = (uint32)lua_tointeger(L, 2);
+	int32 cost = (int32)lua_tointeger(L, 2);
+	if(cost <= 0) {
+		lua_pushboolean(L, 0);
+		return 1;
+	}
 	duel* pduel = interpreter::get_duel_info(L);
 	uint32 must_pay = FALSE;
 	if(lua_gettop(L) > 2)